What Can Cause A Fever To Last 5 Days. People who have flu often feel some or all of these symptoms: If the body temperature fails to come down after three days, then you should consult a.
In many cases, no specific cause of the fever is found, 2. The knowledge that viruses can cause high and/or prolonged fever allows the physician to withhold antibiotic treatment and. However, fevers that reach high temperatures or last for more than three days are more likely due to a serious illness.